How to Build a Lava Moat (with xkcd)

The video tutorial explains how to create and maintain a lava mote, emphasizing the need for high temperatures to melt rocks and achieve the desired glow. It discusses the challenges of maintaining the heat and light of the lava, suggesting solutions like electric heating and insulation. The video also explores various power sources, including solar, coal, nuclear, and geothermal, highlighting their pros and cons for sustaining a lava mote.

What is the estimated cost per hour to maintain a lava mote?

What is a potential off-grid power source for a lava mote?